From: bugs dot php dot net at enca dot cz
Operating system: MS Windows Server 2003
PHP version: 5.0.4
PHP Bug Type: Session related
Bug description: session unset inside foreach breaks session write handler
Description:
------------
In this testcase the "write" function is not called. If you remove line
with "unset", the write function is called properly. If you delete whole
foreach cycle and use
"unset($_SESSION['A']);" instead, the "write" function si also called - as
expected. This bug appear only when you call "unset" inside foreach cycle.
My environment:
MS Windows Server 2003 SE (Windows NT 5.2 build 3790)
Apache/2.0.53 (Win32) PHP/5.0.4
Smilar (but not exactly same) bug is described as #32564, but it is in the
No feedback status and there is no way (for me) to change this status. I
hope that this "reproduce code" is much better then codes from #32564
I can provide more information if you ask for them.
Reproduce code:
---------------
<?php
function foo(){return(true);}
function read($id){
return 'A|s:1:"a";B|s:1:"b";';
}
function write($id, $sess_data){
print "I'm writing this data: $sess_data\n";
return true;
}
header('Content-Type: text/plain');
session_set_save_handler("foo", "foo", "read", "write", "foo", "foo");
session_start();
print_r($_SESSION);
foreach($_SESSION as $lsKey => $lsVal){
if($lsKey != 'A'){
unset($_SESSION[$lsKey]); //<<<<<<<< if you comment this line, the
write function is called properly
}
}
print_r($_SESSION);
?>
Expected result:
----------------
Array
(
[A] => a
[B] => b
)
Array
(
[A] => a
)
I'm writing this data: A|s:1:"a";
Actual result:
--------------
Array
(
[A] => a
[B] => b
)
Array
(
[A] => a
)
--
Edit bug report at http://bugs.php.net/?id=32910&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=32910&r=trysnapshot4
Try a CVS snapshot (php5.0):
http://bugs.php.net/fix.php?id=32910&r=trysnapshot50
Try a CVS snapshot (php5.1):
http://bugs.php.net/fix.php?id=32910&r=trysnapshot51
Fixed in CVS: http://bugs.php.net/fix.php?id=32910&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=32910&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=32910&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=32910&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=32910&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=32910&r=support
Expected behavior: http://bugs.php.net/fix.php?id=32910&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=32910&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=32910&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=32910&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=32910&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=32910&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=32910&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=32910&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=32910&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=32910&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=32910&r=mysqlcfg
